Maintenance; Maintenance Intervals - Dräger Polytron 7000 Instructions For Use Manual

Maintenance

Maintenance intervals

Before starting operation:
Check the calibration, see page 44.

Check the transmission of signals to the control unit and the triggering of

alarms, page 74.
At regular intervals,
to be defined by the person responsible for the gas warning installation:
Check the transmission of signals to the control unit and the triggering of

alarms, page 74.
If a selective filter specific to the sensor is being used:
Replace the selective filter –

See the related operating instructions for the sensor for details of the ca-
pacity of the selective filter being used.
At regular intervals defined in accordance with the sensor being used
by the person responsible for the gas warning system:
Calibrate the sensor, see page 44.

The interval for regular calibration depends on the sensor being used and
on the operating conditions.
The transmitter calculates, from the selected calibration interval (see
page 56), when the next calibration is due.
Specific calibration data for the sensor, see the operating instructions for
the sensor.
Every six months:
Inspection by specialists.

The inspection intervals must be established in each individual case and
shortened if necessary, depending on technical safety considerations, en-
gineering conditions and the technical requirements of the equipment.
We recommend that a service agreement be concluded with DrägerService
and that repairs also be carried out by them.
When using the pump module:
In order to check for leaks, measure the flow at the inlet point and behind

the transmitter.
As required:
Replace sensor, page 46.

Maintenance
43